P2669 code meaning
Actuator Supply Voltage B Circuit/Open
Powertrain system Generic code P26xx codes Check engine light
What P2669 means
Many transmission controllers feed their solenoids through internal high-side switches, called actuator supply A and B. Ford's 6R140 splits its Transmission Solenoid Power Control into two wires: TSPC-A powers shift solenoids A, C and E (fault P0657), TSPC-B powers SSB, SSD, TCC and line pressure control (P2669). Because both share one internal switch, any fault switches off all seven solenoids, leaving park, reverse, neutral and 5th gear with full line pressure; Ford lists P2669 with MIL. In GM's 16OBDG08 tables for Silverado/Sierra the TCM flags an open supply 2 when several solenoids on it read open at once while the supply line stays high; GM's 2023 TCM test checks at power-down and logs it as Type A. P2670 and P2671 cover low and high faults.
P2669 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor1 to 5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2669
- Transmission stuck in a fixed gear (failsafe)
- Harsh engagements due to maximum line pressure
- MIL or transmission warning on
Common causes of P2669
- Most likelyOpen supply wire or connector between module and transmission bulkhead
- PossibleDamaged internal transmission harness or lead frame
- Less likelyHigh-side switch inside the controller failed
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Actuator supply bControl moduleWiring harness
What each part of P2669 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 6 | Area: computer (engine control module) and output circuits. |
| 69 | The exact fault in that area. |
What to do next
- Note P2669 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2669
What does P2669 mean?
P2669 means "Actuator Supply Voltage B Circuit/Open". Many transmission controllers feed their solenoids through internal high-side switches, called actuator supply A and B. It is a generic code, so it means the same on every make.
Is it safe to drive with P2669?
Drive gently and only to a workshop. With P2669 the car can go into limp mode (reduced power) to protect itself.
Will P2669 fail an emissions test?
Yes, it can. P2669 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2669 to fix?
Difficulty: hard. A typical repair takes 1 to 5 hours of work. This is a job for a workshop.
Will P2669 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.